6th Grade Ratios & Percentages

1. Write the ratio 10 to 15 in simplest form.

2. There are 9 cats and 6 dogs. What is the ratio of cats to dogs in simplest form?

3. Simplify the ratio 18:24.

4. A bag has 5 red apples and 10 green apples. Write the ratio of red apples to total apples in simplest form.

5. Find the missing number: 4:9 = 12:

6. Find the missing number: 2:7 = :28

7. Cheese costs $8 for 2 pounds. What is the cost per pound?

8. A runner ran 12 miles in 2 hours. What is the rate in miles per hour?

9. Find the unit rate: $24 for 8 tickets.

10. A car travels 180 miles in 3 hours. What is the speed in miles per hour?

11. Write 35 as a percent.

12. Write 75% as a fraction in simplest form.

13. What percent is equivalent to 15?

14. Convert 0.35 to a percent.

15. Find 30% of 90.

16. Find 5% of 400.

17. 18 is what percent of 72?

18. 40 is 20% of what number?

19. A bike costs $120 and is discounted by 15%. How much is the discount?

20. The ratio of flour to sugar is 5:2. If you use 10 cups of flour, how many cups of sugar do you need?

21. On a scale drawing, 1 inch represents 4 feet. How many feet do 6 inches represent?

22. 60% of the 25 students in a class are girls. How many girls are in the class?